Herbicidally active benzoic acid amides

Abstract

The invention relates to benzoic acid amides of general formula (I) as herbicides. In formula (I) X, Z and R represent radicals such as alkyl and cycloalkyl. Q represents a 5-membered heterocycle.

The invention claimed is: 
     
       1. A benzamide of the formula (I) or salt thereof 
       
         
           
           
               
               
           
         
         where the symbols and indices are each defined as follows: 
         Q is a Q1, Q2 or Q3 radical, 
       
       
         
           
           
               
               
           
         
         X is (C 1 -C 6 )-alkyl or (C 3 -C 6 )-cycloalkyl, 
         Z is (C 1 -C6)-alkyl, 
         R is (C 1 -C6)-alkyl, (C 3 -C 6 )-cycloalkyl, (C 3 -C 6 )-cycloalkyl-(C 1 -C 6 )-alkyl, (C 1 -C 6 )-alkyl-O-(C 1 -C 6 )-alkyl, 
         R X  is methyl, ethyl, n-propyl, prop-2-en-1-yl, methoxyethyl, ethoxyethyl or methoxyethoxyethyl, 
         R Y  is methyl, ethyl, n-propyl, chlorine or amino, 
         R Z  is methyl, ethyl, n-propyl or methoxymethyl, 
         n is 0, 1 or 2. 
       
     
     
       2. A benzamide or salt as claimed in  claim 1 , in which
 Q is a Q1, Q2 or Q3 radical, 
 
       
         
           
           
               
               
           
         
         X is methyl, ethyl or cyclopropyl, 
         Z is methyl, ethyl, n-propyl or isopropyl, 
         R is methyl, ethyl, cyclopropyl, cyclopropylmethyl or methoxyethyl, 
         R X  is methyl, ethyl, n-propyl, prop-2-en-1-yl, methoxyethyl, ethoxyethyl or methoxyethoxyethyl, 
         R Y  is methyl, ethyl, n-propyl, chlorine or amino, 
         R Z  is methyl, ethyl, n-propyl or methoxymethyl, 
         n is 0, 1 or 2. 
       
     
     
       3. The benzamide or salt according to  claim 1 , wherein
 Q is 
 
       
         
           
           
               
               
           
         
         X is methyl, 
         Z is methyl, 
         R is methyl, 
         R X  is methyl, and 
         n is 2. 
       
     
     
       4. A herbicidal composition comprising a herbicidally active content of at least one compound of formula (I) or salt as claimed in  claim 1 . 
     
     
       5. The herbicidal composition as claimed in  claim 4  in a mixture with one or more formulation auxiliaries. 
     
     
       6. A method of controlling unwanted plants, comprising applying an effective amount of at least one compound of formula (I) or salt as claimed in  claim 1  or a herbicidal composition thereof to one or more plants or to a site of unwanted vegetation. 
     
     
       7. The method according to  claim 6 , wherein the one or more plants are useful plants. 
     
     
       8. The method as claimed in  claim 7 , wherein the useful plants are transgenic useful plants. 
     
     
       9. A product comprising a compound of formula (I) or salt as claimed in  claim 1  or a herbicidal composition thereof for controlling one or more unwanted plants.